mirror of
https://github.com/sheumann/hush.git
synced 2024-12-28 07:30:23 +00:00
62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Mini touch implementation for busybox
|
|
*
|
|
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
|
|
*
|
|
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
|
|
*/
|
|
|
|
/* BB_AUDIT SUSv3 _NOT_ compliant -- options -a, -m, -r, -t not supported. */
|
|
/* http://www.opengroup.org/onlinepubs/007904975/utilities/touch.html */
|
|
|
|
/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
|
|
*
|
|
* Previous version called open() and then utime(). While this will be
|
|
* be necessary to implement -r and -t, it currently only makes things bigger.
|
|
* Also, exiting on a failure was a bug. All args should be processed.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <sys/types.h>
|
|
#include <fcntl.h>
|
|
#include <utime.h>
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
#include "busybox.h"
|
|
|
|
int touch_main(int argc, char **argv)
|
|
{
|
|
int fd;
|
|
int status = EXIT_SUCCESS;
|
|
bool flags = (getopt32(argc, argv, "c") & 1);
|
|
|
|
argv += optind;
|
|
|
|
if (!*argv) {
|
|
bb_show_usage();
|
|
}
|
|
|
|
do {
|
|
if (utime(*argv, NULL)) {
|
|
if (errno == ENOENT) { /* no such file*/
|
|
if (flags) { /* Creation is disabled, so ignore. */
|
|
continue;
|
|
}
|
|
/* Try to create the file. */
|
|
fd = open(*argv, O_RDWR | O_CREAT,
|
|
S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH
|
|
);
|
|
if ((fd >= 0) && !close(fd)) {
|
|
continue;
|
|
}
|
|
}
|
|
status = EXIT_FAILURE;
|
|
bb_perror_msg("%s", *argv);
|
|
}
|
|
} while (*++argv);
|
|
|
|
return status;
|
|
}
|